underpowered

/AH0 N D ER0 P AW1 ER0 D/
verb
  1. 1

    To supply with insufficient power.

Antonyms

adjective
  1. 1

    Having insufficient power for its operation.

Source: https://en.wiktionary.org/wiki/underpower, https://en.wiktionary.org/wiki/underpowered